A100 PCIe 80GB vs A100 PCIe 40GB
Compare NVIDIA A100 PCIe 80GB and NVIDIA A100 PCIe 40GB specs, performance, and cloud pricing
A100 PCIe 80GB
80GB
From $1.05/hr
A100 PCIe 40GB
40GB
From $0.850/hr
Architecture
Ampere
vs Ampere
FP16 Gap
1.0x
A100 PCIe 40GB leads
| Specification | A100 PCIe 80GB | A100 PCIe 40GB |
|---|---|---|
| VRAM | 80 GB | 40 GB |
| VRAM Type | HBM2e | HBM2e |
| FP16 TFLOPS | 624 TFLOPS | 624 TFLOPS |
| FP8 TFLOPS | N/A | N/A |
| Memory Bandwidth | 2.0 TB/s | 1.6 TB/s |
| TDP | 300W | 250W |
| Interconnect | PCIe Gen4 | PCIe Gen4 |
| Architecture | Ampere | Ampere |
Price Comparison
| Metric | A100 PCIe 80GB | A100 PCIe 40GB |
|---|---|---|
| Cheapest On-Demand | $1.05/hr | $0.850/hr |
| Cheapest Spot | $0.740/hr | $0.480/hr |
| Providers Available | 3 | 4 |
Verdict
Best for Training
NVIDIA A100 PCIe 80GB
624 TFLOPS FP16 with 80GB VRAM
Best Value
NVIDIA A100 PCIe 40GB
734 TFLOPS per $/hr
Best for Inference
NVIDIA A100 PCIe 80GB
624 TFLOPS FP8/FP16
Use-Case Recommendations
Large-Scale Training
Training LLMs and large multi-modal models
Winner
A100 PCIe 80GB
624 TFLOPS FP16 with 80GB HBM2e provides the best training throughput.
Inference at Scale
Deploying models in production for real-time inference
Winner
A100 PCIe 80GB
624 TFLOPS FP8/FP16 gives superior inference throughput.
Budget-Conscious Workloads
Getting the best performance per dollar
Winner
A100 PCIe 40GB
Starting at $0.850/hr delivers the best TFLOPS per dollar.